I have set up my Server (2008 R2 Foundation) for remote desktop and RemoteApp as per the instructions provided by Microsoft. I am using a single server for all functions. When a user logs in to the Server through remote desktop, the remote desktop screen comes up and then the user immediately gets an 'Access is Denied' message. If the user connects through RDWeb, the RemoteApps are displayed, but when the user clicks on an application, they are prompted again for their login credentials and then they get the remote desktop screen with an 'Access is Denied' screen as well. This happens even for Administrators.
I am getting very frustrated with this as I have read many blogs and tried everything to no avail. PLEASE help me.